package demo02;

/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: YKH
 * Date: 2022-04-03
 * Time: 20:01
 */
public class test02 {
    //1.
    public static void main1(String[] args) {
        String s = "hello";
        StringBuffer append = new StringBuffer(s);
        System.out.println( append.s1);
    }

    //2.
    public static void main(String[] args) {
        new Cat().shout();
    }

    //3.
}
